Peteb norberg



,Patented Mar. 8, 1.932

, .PETER NORBERG, OF BERNARD SEAL TRAP Application filed January 14, 1930. Serial No. 420,725.

thesides ofthe hole.

A further object of the invention is to provide an inipaling trap for seals and the like adapted to be anchored and steadied in place and providedy with circumferentially spaced impaling teeth designed to admit of the entrance of a part of the animal and to prevent its withdrawal or retirement.

VA still further object of the invention is the provision of a trap of the nature andfor the purpose set forth that is characterized by structural simplicity, durability and low cost of production whereby the same is rendered commercially desirable.

To the accomplishment of these and related objects as shall become apparent as the description proceeds, my invention resides in the construction, combination and arrangement of parts as shall be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the claims hereunto appended.

The invention will be best understood and can be more clearly described when reference is had to the drawings forming a part of this disclosure wherein like characters indicate like parts throughout the several views.

In the drawings s* Figure l is a plan View of my improved trap;

Figure 2 is a longitudinal section as taken on the line 2-2 of Figure l; and

Figure 3 is a plan similar to Figure l, but showing the impaling teeth held open or set by spacing rods.

As seals spend most of their time under water and yet have need of air, they are conksequentlyforced to work hard during the coldest periods of winter to keep their breathing holes open through the ice that may be as much as five to ten feet thick. long they come to the surface rra-1 PATENT ortica HARBOUR, NORTH WEST TERRITORIES, CANADA All the winter through these holes as the work of keeping them open and breathing necessitates. locate my traps, about carried out over the ice and and twigs or other stays that e It is in these holes, I six inches under the surface of. the ice; the anchor ing chains are firmly secured ngage the trap are frozen with slush against the sides of the hole to hold or maintain the trap while set in the desired'centered and horizontal position.

As a seal coming to the surface engages and is in turn engaged by as the traps anchoring chains then either dies as flicted by the trap or drowns.

this trap, it endeavors Vtosink to safety and in doing 'carries the trap downwards so with it as far will allow and a result of the wounds in- The animal is then easily drawn to the surface and the'trap reset and positioned. The. principal element in t he trap is the .frame 5', an annular band about a quarter inch thick and two inches deep. Radial dogs or inipaling teethr 6 with sharp points at their inner ends are hingedl y mounted in the lrecessed seats 7 spaced at intervals circumferentially about the frame band 5. As this frame band will probably be manufactured most economically as a recessed seats Z will preferably be formed as casting, these outwardly offset concentric continuations of the ring and of the same thickness.

The dogs 6 are mounted on t horizontal pivot pins degrees he seat-carried 8 and normally stand inwardly and upwardly inclined at by virtue of the action about 45 of the springs 9, shown in the illustration formed as a. Z-shaped member secured side of the dog at its inner end upwardly to a. point near the cessed seat 7 and thence outwa perforation l0 in the wall th upward hinging of the to the under and extending top of the rerdly through a ereof. As the Y dog against the spring would tend to bring the face of the dog and the vertical portion of the spring` together even to a point of contact, a ver tical groove ll.

running longitudinally of the dog is provided to accommodate this portion when the dog shall. `be mo vertical or upright position.

of the spring ved into such For ordinary of the rings diameter, when open, to a cirtorations 14 inV theY frame wall cumference of four to six inches when closed.

vAnchoring chains 12, forked at their inner ends to engage the trap frame at two spaced of places by the links 13 passing through perfdiametrically opposite sides of the trap.

These are intended, as previously intimated, to Abe" carried up over the ice andsuitably secured. At diametrically opposite points at right angles tothe anchor chains, I havevprovided sockets in theformoi1 vertical openings 15 through coincidental bulves in the trame 5, whose purpose isto accommodate any suitable device that may beemployed as a brace tothe side ot .the hole in the ice for steady- Y ingthetrap inposition. v l f y .An expedientforholding the dogs open, inA Vthe 'nature of links or rods'or strands of stift' wire 16 with eyelets 17 connecting their ends' in a. chain, is provided and used by slipping the eyelets 17 f over the tree pointed ends of the dogs ``6`, the' length of the links large lower ends in said seats; an individual spring member for each ot said dogs toresiliently maintain said dogs in inclined converging position; means removably resting on the pointed upper ends of said dogs to maintain them in upstanding set position; means for connecting the last mentioned means to said frame; means for securing said trame in set position in an opening through ice; and anchoring means for said 2. A seal trap nular frame with seats Vosettherefrom; spring held dogs pivoted in said seats and converging vtoward one another; spacing links connected by ringsremovably engaged over the pointed upper ends of saiddogs to normally maintain said upper ends o1c the dogs in their outermost spaced position against .the action of the springs for said dogs; means -or connecting said `links to said frame; means Jfor securing said trame in set posit-ion in an openingrthrough ice; and anchoringkmeans tor .said -rame connected with opposite sidesV thereof.

-In testimonywhereof I yhereunto vaiiX my signature.'A

, vriifrnn Nonsens.y [as] g 1o-` as chords determining the circumference/.y

of the dogsshall describe when Y Y The need for setting the dogs in this manner may present itself it for any reason "the vsprings 9 yappeared too strong or if'icef'seemed to vprevent the veasy opening ,of the dogs so as to deter any animal: from enteringgthe ready dislodging of the links andV Y eyelets by the intruder ,allowingl the impalingl dogs to come into'imm'ediate action being ap-V parent".v A chain or other appropriate keeperV 18 connects the stringof links to the trap ir-"aime 5`to1per`mit of retrieving it once dislodged.v f f i ,c From the' orefoing. ydescription taken in connection Vw-ith the laccon-ipanying drawings, itwillI bemani'festthat a seal trapis provided'that will lfulfill all the necessary requirements 'o t such` a `device but yas many changesy could be made in the yabove descriptie-n and many apparently widely differv ent'einbodirnents of my invention may loeY constructed within the scope of the appended claimsjijvithout departing from the spirit or scope thereof, it is intended that allmatters ings and'specitication shall be interpreted as tions 'orming seats vopening into `the said frame; pointed arcuate dogs pvoted at their including a continuous an- Y contained in the saidv accompanying draw- Y 

